The recommended biofertilizer for banana are Azospirillum /Azotobacter in combination with PSB. However, mycorrhizal inoculation also gives additional benefit for mobilizing nutrients. Biofertilizers are applied as sucker dip method as well as soil treatment.
This method is recommended generally for treating the sets of sugarcane, cut pieces of potato
and the base of banana suckers
Mix 1 kg each of nitrogen and phosphatic biofertilizer packets in 40 - 50 litres of water.
Immerse banana suckers required for one acre in the suspension for 30 minutes.
Dry under shade for some time before planting.
Irrigate the field within 24 hours.
Mix 2 –3 kg each of the Azospirillum /Azotobacter and PSB culture packets with 100 kg of well decomposed cattle manure/ compost for one acre of land and Sprinkle water to the mixer
Keep the mixer overnight for curing
Broadcast into soil at the time of planting or at the time of irrigation
For long duration crop 20-30 packets of biofertilizer (200g) are mixed with 80-120 kg. Cattle manure or soil for one acre land
Apply mycorrhizal culture in the mango nursery @ 100 gm per sq.m. three centimeter below the soil
For out planting, apply 20 gm mycorrhizal culture per seedling into the planting pit and cover with soil
For existing plant, apply mycorrhizal culture @ 200 gm near the root zone along with other fertilizers
Q. Tick the correct word :
i)Azospirillum / Captan is the recommended biofertilizer for banana.
ii) The mycorrhiza can helps in nutrient mobilization / nutrient solubulisation in banana.
iii) Sucker dip method / sucker cut method is applied to inoculate banana suckers.
iv) Mycorrhizalbiofertilizer should be applied in case of nursery application @ 100 gm / m2 3 cm below soil / above soil.
Model Answers :
ii) Nutrient mobilization
iii) Sucker dip method
iv) Below soil
i) Advances in Microbiology – N. S. Subba Rao
ii) Biofertilizers in Agriculture – N. S. Subba Rao
iii) Bio-fertilizer and Organic Farming – NIIR Board
(Potentialities and Problems) - S. P. Sen and P. Palit